Electrically heated steam heating exchange



y 23, 11950 s. B. WARDEN, SR 2,508,736

ELECTRICALLY HEATED STEAM HEATING EXCHANGE Filed April 8, 1948 2 ShetS-ShQet l Samuel B. Warden, Sr.

1 N VENTOR.

.BY Ma ma mm]:

May .23, 1950 5, D SR 2,508,736

ELECTRICALLY HEATED STEAM HEATING EXCHANGE Filed April 8, 1948 2 Sheets-Sheet 2 Fig. 3.

we r 92 I N VENTOR.

BY ME Samuel B. Warden, Sr.

Patented May 23, 1950 ELECTRICALLY HEATED STEAM HEATING EXCHANGE Samuel B. Warden, Sr., Fairview, Tenn.

Application April 8, 1948, Serial No. 19,835

6 Claims. (01. 219-39) :tion is to provide an electrically heated steam heating exchange including a radiator in which there is mounted an electrical heating unit, an

electrically operated fan for impellin air against the radiator, means whereby the fan and heating unit may be manually activated simultaneously, and means for automatically activating the heat- .ing unit and fan upon temperature change in the room where the heat exchange is disposed.

A further object of the present invention is to provide an electrically heated steam heating exchange that is extremely simple and practical in construction to occupy very little space and which is highly efficient and economical in operation.

A still further aim of the present invention is to provide an electrically heated steam heating exchange of the aforementioned character that is small and compact instructure, strong and reliable in use, neat and attractive in appearance, relatively inexpensive to manufacture, and otherwise well adapted for the purposes for which the same in intended. Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a longitudinal vertical sectional view of the present heating exchange taken substantially in the plane of section line II of Figure 2, and with parts thereof shown in elevation for the purpose of illustration;

Figure 2 is an end view of the present heating exchange; and,

Figure 3 is schematic diagram showing the electric circuit used in conjunction with the present invention.

Referring now to the drawings in detail, wherein for the purpose of illustration, there is disclosed a preferred embodiment of the present invention, the numeral I represents the radiator used in conjunction with the present invention generally, comprising a lower, preferably cylindrical, liquid holding tank I2 having end walls I4 and I6, and an upper substantially cylindrical pressure tank I8. These tanks I2 and I8 are disposed substantially horizontally but are spaced and connected by a plurality of open-ended substantially vertically disposed tubes or conduits 20 that support spaced parallel, horizontally disposed, vertically spaced resilient heat retaining fins 22.

Receivably engaging. an internally threaded aperture 24 provided in the end wall l6 of the liquid receiving tank I2, below the normal liquid level 26 thereof, is a threaded inner end 28 of an outwardly projecting lower tube as the outer end 32 of which is turned upwardly to support a coupling nut 34. The threaded inner end 36 of an upper tube 38 receivably engages a further internally threaded aperture 40 provided in the end wall I6 and is formed with a downwardly turned outer end 42 that supports a coupling 44. The end portions of a transparent sight tube or glass sleeve 46 are held in communication with the ends 32 and 42 of the tubes 38 through the me dium of the packing glands 34 and 44.

Fixed to the end wall I6 of the liquid holding tank I2, is an arcuate pipe section 43 one end 50 of which is disposed above the liquid level 26 of the tank I2, and the remaining end 52 of which supports a manually operated needle valve that is disposed above the end 50 of the pip section 48.

Secured in any suitable manner to the upper tank I8, is an open ended arcuate pipe section 56 that is operatively connected to a usual pressure and vacuum indicating gauge 58 for indicatilngeither a pressure or vacuum in the radiator The numeral 60 represents a supporting platform Or framework generally, including a pair of horizontal angle members 62 that removably engage a base plate 64. U-bolts 66 carried by the base plate 64 embrace the lower tank I2 and hold the same fixed to the base plate. Fixed to the angle members 62 is a pair of vertically disposed angle iron posts 68 that support anelectric fan 10 having an air impelling blade 12 which is spaced relative to the radiator I0, as shown best in Figure 2 of the drawings.

Fixed to the end wall I4 of the liquid receiving tank 12, is a suitable hot water heating element or unit 14 having a heating coil 16 that is disposed in the tank I2 below the liquid level 28 thereof. This heating unit 14 is electrically connected by a conductive wire 18 to a suitable thermostatic control unit mounted on the end wall l4 and having a temperature responsive arm 82 that is disposed within the tank I 2.

The numeral 84 represents an electric junction board that is suitably mounted on a supporting structure for convenient accessibility thereto. This board 84 includes terminals 86, 88, 90 and 92. Connected to the terminal 86, is a conductive wire 94 that leads from th thermostatic unit 80, and connected to the terminal 90 is a conductive wire 96 leading from the heating unit 14.

It should be noted, that an outside thermostatic or temperature responsive thermostat 98 is connected by conductive Wires I and I02 to the terminals 92 and 90 respectively for a purpose which will later be more fully apparent, and further that the fan is connected by conductive wires I04 and I06 to the terminals 88 and 90.

The terminals 85, 88 and 92 are connected to wires I08, H0 and H2 of a three wa outlet plug (not shown) Practical use of the present invention, the procedure is as follows: the three way plug is first disengaged from a source of electric current, such as an outlet socket, so that the radiator will cool down and a vacuum will be indicated on the gauge 58; a rubber hose (not shown) is then applied to the end 52 of the pipe section 46 and. extended into a source of liquid; the valve 54 is manually opened so that the liquid from the source of liquid will be sucked into the tank l2 until the liquid rises in the sleeve 46 to the liquid level of the tank 12; the "valve 54 is next closed and the three way plug inserted into the outlet socket until the gauge 58 indicates a pressure of fifteen pounds per square inch in the radiator I0; the three way plug is then disengaged from the electrical outlet socket and valve 54 opened until the gauge registers atmospheric pressure or more particularly until the indicating needle of the gauge registers with the zero indicia thereon; and, the valve 54 is closed and the three way plug inserted in the source of electric current for operation of the present heating plant.

It is noted, that the outside thermostat 98 may be controlled by a suitable switch whereby the heating unit 14 and thermostatic control unit 80 will be simultaneously actuated upon a temperature change in the room Where the present plant is mounted. If desirable the above referred to switch may be cut oil? so that the heating plant may function independently of the room temperature in which the same is disposed.

In view of the foregoing description taken in conjunction with the accompanying drawings it is believed that a clear understanding of the device will be quite apparent to those skilled in this art. A more detailed description is accordingly deemed unnecessary.

It is to be understood, however, that even though there is herein shown and described a preferred embodiment of the invention the same is susceptible to certain changes fully comprebended by the spirit of the invention as herein described and the scope of the appended claims.

Having described the invention, what is claimed as new is:

1. An electrically heated steam heat exchange comprising a radiator including a liquid receiving tank, an electric heating element positioned in the tank, means for impelling air into contact with the radiator, means for creating a vacuum in the tank for the drawing of liquid into the tank for the filling thereof, means for indicating the level of liquid within the tank, means for indicating a pressure or vacuum within the radiator, said last mentioned means cooperating with said means for creating a vacuum in the tank, means connecting the air impelling means and the heating element to a source of electric current for simultaneously activating the air impelling means and heating unit, and means for maintaining the liquid in said tank at a predetermined temperature.

2. The combination of claim 1 wherein said radiator includes an upper pressure tank, a plurality of open ended tubes connecting the upper tank to the liquid receiving tank, and a plurality of heat retaining fins carried by the tubes.

3. The combination of claim 1 wherein said means for delivering liquid into the liquid receiving tank includes an arcuate open ended pipe section having one end positioned in the tank above the liquid level thereof, and a manually operated valve controlling the pipe section.

4. The combination of claim 1 wherein the means for impelling air into contact with the radiator includes an electric fan spaced relative to the radiator.

5. The combination of claim 1 wherein the means for indicating the level of liquid within the tank includes a lower tube extending outwardly from the tank and below the liquid level thereof, an upper tube extending outwardly from the tank and above the liquid level thereof, and a transparent sleeve carried by the upper and lower tubes.

6. An electrically heated steam heat exchange comprising a radiator including a liquid receiving tank, an electric heating element positioned in the tank, means for impelling air into contact with the radiator, means for creating a vacuum in the tank during the filling thereof, means for delivering liquid into the tank, means for indicating the level of liquid within the tank, means for indicating a pressure or vacuum within the radiator, means connecting the air impelling means and the heating element to a source of electric current for simultaneously activating the air impelling means and heating unit, and an outside thermostat for controlling said last mentioned means.

SAMUEL B. WARDEN, SR.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS- Number Name Date 1,241,244 Palmer Sept. 25, 1917 1,907,357 Kovesdy May 2, 1933 2,025,216 Opitz Dec. 24, 1935 2,360,071 Noll Oct. 10, 1944 

